Andeew campbell



(No Model.)

A. CAMPBELL.

, MOUNTING F ORM ROLLERS FOR PRINTING PRESSES.

No. 282,956. Patented Aug. 14,1883.

WITNESSES: I VENTOR:

W By his Attorneys,

N. PETERS. Pmn-umo u m Washinglon. 0.6.

' UNITED STATESPATENT OFFIC ANDREW CAMPBELL, (OF BROOKLYN, ASSIGNOR r JOHN McLoU'eHLIN L l ND EDMUND MOLOUGHLIN, on NEW YORK, N. Y.

MOUNTING FORM-ROLLERS FOR, PRINT ING-PRESSES.

SPECIFICATION formingpart of Letters Patent No. 282,956, dated August 14, 1833,

Application filed Febx uary 20, 1883. (No model.)

To all whom it may concern.-

Be it known that I, ANDREW CAMPBELL, a citizen of the United States, and a resident of Brooklyn, Kings county, New York, have invented certain Improvements I in Mounting Form-Rollers for Printing-Presses, of which the following is a specification. My invention relates to an improved bearing for the journals of an inking form-roller for printingpresses. p The object of my invention is to provide a bearing that may be adjusted vertically with ease, and which may beturned, when worn, on its side, or inverted. Heretofore in constructing and mounting the boxing for the ends of the form-rollers it has been customary, so far as I am aware, to

provide thesquare or angular bodies of the boxes with lateral flanges, and to arrange said boxes to slidein vertical slots or forks in the frames. These boxes have been provided with by the jarring of the press.

adjusting-screws to regulate the height at which the roller is intended to stand, normally, with respect to the form 5 but, so far as I am aware, no means have been provided to prevent the adjustment from being disturbed This difficulty I seek to overcome by providing the box with pendent flanges atits ends, which are adapted 3 to embrace the square or polygonal head of the adjusting-screw so closely as to prevent the screw from being turned without lifting the box, as will be more fully hereinafter explained.

I provide a long box for the roller-spindle, whereby a considerable extent of bearing-surface is furnished, and providing this box with a square to rest in a fork in a bracket on the press-frame, said square being flanked by two collars formed on the box. The square on the box rests on the squareor polygonal head of an adjusting-screw in the fork of the bracket, the head of which is so closely embraced by 'the collars on the box, when the latter is in place, that it cannot be turned or disturbed by accident, and only by raising the box high enough for the collars to clear the head. When the box becomes worn on one side, which it will not be for a longtime, by reason of its length, it may be slipped off the spindle and turned over. The collars embrace thejaws of the fork on the bracket, so that the box cannot play endwise, and it is thus limited strictly to a vertical movement. The vertical adjustment of the box may be-necessary in doing fine work many times during the day, as the rollers are being changed continually, and the shrinkage is always going on until the roller is worn out. For this the ordinary forms of roller-mounting do not furnish adequate provision.

In the drawings, which serve to illustrate my invention, Figure 1 is a side view of the bearing, showing the boxing in transverse sec tion on line 1 1 in Fig. 2. Fig. 2 is asectional elevation taken substantially on line 2 2 in Fig. 2. Fig. 3 is an elevation on a smaller scale, illustrating the application of my invention to a swivel bearing for shifting anglerollers, employed mainly in distributing.

A is the bearingbracket, which may be recessed at a to' receive a flange on the pressframe, as indicated in dotted lines in Fig. 2. The attachment of the bracket is effected by means of a screw or bolt, as also indicated in said figures.

The bracket A is provided with twoupright jaws, b b, which embrace a square, 0, formed on the box B. The box is also provided with two collars, d d, which embrace the jaws b,

and prevent any movement endwise of the.

box.

The box is provided with a bore, 0, to receive the spindle or journal of the form-roller, and four oil-holes, g, in the sides of the square 0. Whichever side of the" square is uppermost, an oil-hole is provided to receive the lubricant. The holes at the sides arestopped by the jaws I), (see Fig. 1,) and the hole at the bottom is stopped by the head of an adjusting-screw, O, on which the box rests. This screw screws into the bracket at the bottom of the recess between the jaws, and has a flat square head, upon which the square on the box rests. The head of this screw is about equal in width to the thickness of the jaws b, so that it will be closely embraced by the collars cl d whenthe box is in place, and be thus prevented from turning, as will be well understood. 1

When it is desired to raise orlower the box,

it is' liftedout or raised up,'and the screw l 1.. The combination, with the non-rotative adjusted to the proper elevation.

When the box becomes worn it may be lifted out and turned over. When worn out it may be. renewed without the necessity of renewing the bracket. As the boxing cannot move laterally nor longitudinally, it follows that it must play in a truly vertical plane, and as the box is entirely independent of the bracket, I may make it quite long, as shown in Fig. 2, so as to give to the roller-journal along bearing.

The construction shown in Figs. 1 and 2 is.

/ adapted for rollers which extend across the form or distributing-table at right angles to the line oftravel of the bed, and which have only avertical play. For angle-rollers, so called, which extend obliquely across the form or table, and which are sometimes arranged to vary their angles by a movement at one end, I employ the construction shown in Fig. 3. In this construction the jaws b are constructed separately from the bracket, and provided with a shank or spindle, h, which rests in a socket in.

the bracket or holder A. I11 either construction the box B and its adjusting-screw O are box provided with pendent collars, and the bracket provided with jaws to receive it, of the square-headed adjusting-screw, with its head arranged to take between the collars on the box, substantially as and for the purposes set forth.

2. The box B, provided with a square, 0, and collars d d, in combination with the bracket provided with jaws b to embrace the square'c, and the adjusting-screw 0, all arranged to operate, substantially as set forth.

3. The box B, provided with the square 0,

and with collars cl, in combination with the bracket provided with jaws b, and the adjusting-screw G, the head of which is arranged to be closely embraced by the collars d on the box, substantially as and for the purposes set forth.

4. As abearing for the roller of a printingpress, the box 13, provided with a square, 0, and collars d d, in combination with the bracket provided with jaws b, all constructed and arranged substantially as and for the purposes set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

ANDREW CAMPBELL.

. Witnesses:

D. E. FARRELL, A. R. HILLYER. 

